### >>
try
	(new cde.Note('a0/2'   )).trace()
	(new cde.Note('a4/4.'  )).trace()
	(new cde.Note('f+3/8.' )).trace()
	(new cde.Note('f3/8'   )).trace()
	(new cde.Note('f-3/83' )).trace()
	(new cde.Note('c-8/G3' )).trace()
	(new cde.Note('c8/G'   )).trace()
	(new cde.Note('c+8/G.' )).trace()
	(new cde.Note('a2/W'   )).trace()
	(new cde.Note('e7/1'   )).trace()
catch err
	console.log err

<< ###
		
op1 = new cde.Opus('a0/2 a4/4. f+3/8.')
op1.trace()

stf = new cde.Staff()

stf.load( op1)